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Message: <blockquote data-quote="#BrownRoush" data-source="post: 1395805" data-attributes="member: 10990">Can't remember the last time I posted here. Currently have a 2001 Roush Stage 2. possible to change my user name?on with my problem:I have only this occurrence only a couple of time, and only occurs under these parameters. It wasn't till I have a week off that I even noticed the car would do this.If my Roush sits for about two days, when I first start it up and drive it, under part throttle, the car doesn't not pull smooth, like it has a miss or something. Idle is fine. WOT is fine. After some time driving it usually evens itself out. Furthermore, if I let the car get warm(like middle of gauge warm) it usually wont do the miss. If the car is driven every day, it doesn't do it at all. Already replaced the fuel filter with an OEM, filter. A few Mustang friends of mine said the Fuel pump may be on the way out. Would greatly appreciate any information to the cause.furthermore, form yesterday:Just wanted to update this, now my car seems to be miss all the time under light throttle, and bogs on WOT. idle appears to be fine. just cleaned the MAF and checked the resistance on the COP's tonight. on a short drive the car did feel better. However, during the COP check i did unplug the car battery, So im still not sure if the cleaning or the reset made it better.</blockquote>